Device for unreeling the strand material in winding machines



March 6, 1945. W- SIEGENTHAl-ER 2,370,922

DEVICE FOR UNREELING THE STRAND MATERIAL IN WINDING MACHINES Filed Sept.17, 1942 2 She'ebS-Shee l gai/fw@ my@ l March 6, 1945. W slEGENTHALER2,370,922

DEVICE FOR UNREELING THE STRAND MATERIAL IN `WINDING MACHINES Filedsept. 1'7, 1942 2 sheets-Sheet 2 Patented Mar. 6, 1945 UNIT-Eo STATESPATENT" OFFICE] MATERIAL IN WINDING MACHINES Walter Siegenthaler,Erlenbach, Zurich, Switzerland, assignor to Maschinenfabrik Schrer,Erlenbach, Zurich, Switzerland Application September 17, 1942, SerialNo. 458,67 6

In Switzerland July 11, 1941.

(c1. 24e-12s) 3 Claims.

the construction of the unreeling device is con-.j

means of a central pipe stud I4, and is provided with a mediateprojection I6 which is advantageously removably arranged. In Fig. 1 itis assumed that the carrier plate I5 supports a spun cake I1 of articialsilk,( as schematically indcated.

a bore provided in the upper end portion of the vertical shaft 6 aspindle I8 is inserted.

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This end of the vertical shaft 6 is provided with a longitudinal recesspermitting the spindle I8 to .be lirmly clamped to the vertical shaft 6by means ,of a nut 6 which cooperates by means of an siderablysimplified so that amongst others theadvantage is obtained that theunreeling operay tion can be more readily observed.

Several embodiments of the invention and modifications of details areillustratively exemplified in the accompanying drawings, in which Fig. 1shows a sectional elevation of a rst embodiment in which two kinds ofholding means for the thread package are arranged in the package carrierframe;

Fig. 2 is an elevation as seen at right angles to the elevation shown inFig. l;

Fig. 3 is a sectional view of a second embodiment including only onekind of holdin-g means, and

Figs. 4 to 6 each show a thread package of different form to be in-donned position in the same package carrier frame.

In the embodiment shown in Figs. l and 2, the gear box of a windingmachine is designated by I. The numeral 2 refers to a main driving shaftwhich passes through the gear box and is provided with a driving disc 3.The other driving parts required forA the winding operation have beenomitted as not necessary for the understanding of the invention. Therotational movement of the horizontal main driving shaft 2 istransmitted to a vertical spindle 6 through a friction gear drive 4, 5(Fig. 1) to which the friction disc 5 is secured by means of a screwstud 1.

The vertical spindle 6 is mounted by means of two needle bearings 8 in asleeve 9 the lower end of which is inserted in the cover I of the gearbox l and is fastened to said cover. The

. remaining length of the sleeve 9 is accommodated in a supporting tubeII the lower end of which is provided with a collar I2 having a setscrew I3 by ,which means the supporting tube II and the sleeveA 9 arefirmly connected to each other. In the open upper part o f thesupporting tube II a carrier plate I is inserted, by

innerconical face with a -mating face of the shaft 6. By this means therotational movement of the shaft 6 is transmitted to the spindle I8. Theupper end portion of the spindle I8 is provided with a mounting piece I9for the central portion 20 of a dished guide disc 2|. The portion 20 isprovided with a pin 22 for interengagement with a groove in the mountingpiece ISI,l

for the purpose of obtaining common rotation for the disc 2| and thespindle I8.

p In the operation of the winding. machine for unwinding a cake-type ofpackage the friction gear drive 4,15 rotates the vertical shaft 6continually, and the latter drives in turn the spindle I8 together withthe disc 2|. 'I'he thread being unwound from cake I'I passes upwardlyalong the periphery of the disc 2| which serves as a circular guide-wayfor the thread. Due to the rotation of the guide disc 2|, the unreelingof the thread from this cake I1 and the conveyance thereof to thewinding spindle of the winding machine is facilitated.

When the thread package to be unwound is of the spool type it is mountedfor unwinding in a different mounting adapted to be swung into positionfor cooperation with the. thread guide 2|. Since the spool requires nopower driven unwinding guide mechanism, the drive mechanism for theguide which is used when a package of another type is to be unwound, isdisconnected.

The tube II in which the carrier plate I5 for the thread to be unreeledis inserted has secured to it a shackle 23 on two projecting arms 23 ofwhich having bent up ends two levers 25 are mounted by means of threadedbolts 24 passing through said ends. On an angular piece 26 'on each ofthese levers 25 is connected by means of a screw bolt 2'I an angularsupporting arm 28 the upstanding leg of which is provided with amounting plate 29.

In the mounting plates 29 `on the two supporting arms 28 a, flangedspool 30 is journalled from which the thread passes to the windingspindle one of the mounting plates 23 to be providedvwith a band brake29' for the spool 30, and the drive of the vertical shaft 8 and thusthat of the spindle I8 to be disconnected, due to the shaft 6, afterhaving been accordingly pushed upward, had entered, by means of the stud1, into engagement with a hook 3I which is arranged on the underside ofthe cover I9. By unhooking the stud 1 from the hook 3| the verticalshaft 6 can beoperatively connected 'with the friction disc 4 by meansof its associated disc 5 whenever the vertical shaft 6 is to be drivenagain. The proportions or size of the arm 28 and of shackle 23 are suchthat -when the arm is swung to operative position for unwinding a spooltype package'the spool 30 will ybe substantially" from the front side ofthe machine.

during the operation of the winding machine the said guide disc isrotated, thereby facilitating the unreeling of the thread from thepackages 4I! or 45 respectively.

It will be readily seen that the different unreeling devices asillustrated in Figs. 3 to 6 for various thread packages can beinterchanged without any further provisions. The unreeling device is soarranged that it can be attended Instead of a carrier plate I5 in thetube II, another thread package carrier member can be immediatelyinserted. A

Due to the provision of a releasable driving -arrangement for the thread'unreeling device in f protects this arrangement against the access ofbeneath the edge of guide 2'I so as to pass upwardly from the spoolagainst the guide without difiiculty.

The two levers 28 may naturally be rigidly connected to each other intothe form of a stirrup.

Fig. 3 shows an embodiment of the invention in which the projection I6of the carrier plate I5 has pushed thereon a cylindrical spool body' 32which carries a thread package 33 of artiiicial silk in the form of across Wind. The friction gear drive 4, 5 is connected.

In Fig. 4 a conical spool body 34 is inserted in the projection 6 of thecarrier .disc I5 and is shown to carry a thread package 35 which alsohas a conical form. Further the spool body 34' is inserted in thevertical shaft 6 bymeans of a central spindle 36. -The thread of theconical cross wind 315 can conveniently be unwound over the tip thereofso that the arrangement of a guide disc or the like for the unwindingthread can be dispensed with. The friction gear drive is shown to bedisconnected in this case.

Fig. 5 shows a spindle 31 to be inserted in the vertical shaft 5 whichholds a cylindrical sleeve 39 carrying a thread package 40, also havingaV cylindrical form, by spring arms 38.

In Fig. 6 a spindle V4I is shown to be inserted in the vertical shaft 6,this spindle having a conical-thickening 42 and spring arms 43 on whichparts a conical sleeve 44 carrying a coplike thread package 45 isarranged. l

In the last two modifications the friction gear drive 4, '5 isdisconnected. If the spindles 31 or 4I are provided with a guide discand the gearing 4, 5 is connected the result is obtained that uff andother foreign matter.

Other control means for the driving arrangement than a hook connected tothe gear box cover may be provided.

I claim:

1. In mechanism for unwinding thread packages of diierent types, asupport for a package winding of one type, a thread guide spaced fromthe support and having a guide edge substantially circular to conform tothe shape and size of the periphery of the package, power means forrotating said guide to assist in the unwinding operation, means fordisconnecting the guide from said power means, a further support foranother type of thread wound package, and means for mounting saidfurther support and the package carried thereby in such positionadjacent the thread guide that thread being unwound therefrom can passagainst the guiding edge.

2. Thread unwinding mechanism as claimed in claim 1, and in which themeans for disconnecting the power drive means includes an axial- 1yslidable driving spindle, a frictional drive ele` ment on said spindle,and a latch for holding said frictional drive element out of drivingposition when the spindle is slid axially to non-driving position.

3. Thread unwinding mechanism as claimed in claim 1 and in which thefurther support for the latter type of package comprises a frame, asleeve fixed on said frame and extending upwardly therefrom, said sleevehousing the rotatablev spindle, a bracket mounted on said sleeve, an armpivoted on said bracket and adapted to be swung to a position over therst support, and means on said arm for supporting said latter type ofwound thread package in position to deliver thread to the thread guide.

v WALTER SIEGENTHALER.

Since the driving

